SQL中的语法错误?? 哪里？

Question

SELECT `bio_community_events`.`id`,
       `bio_community_events`.`begin_on`,
       `bio_community_events`.`name`
  FROM `bio_community_events`
  JOIN `bio_contacts`
    ON (`bio_contacts`.`contact_id` = `bio_community_events`.`user_id`)
  JOIN `bio_community_groups`
    ON (`bio_community_groups`.`id` = `bio_community_events`.`group_id`)
 WHERE `bio_contacts`.`user_id` = '33'
 WHERE `bio_community_events`.`group_id` = '1'
 LIMIT 10

UNION ALL

SELECT `bio_community_events`.`id`,
       `bio_community_events`.`begin_on`,
       `bio_community_events`.`name`
  FROM `bio_community_events`
  JOIN `bio_contacts`
    ON (`bio_contacts`.`user_id` = `bio_community_events`.`user_id`)
  JOIN `bio_community_groups`
    ON (`bio_community_groups`.`id` = `bio_community_events`.`group_id`)
 WHERE `bio_contacts`.`contact_id` = '33'
 WHERE `bio_community_events`.`group_id` = '1'
 LIMIT 10

它说:

[错误] 1064 - 您的SQL语法有错误; 检查与MySQL服务器版本对应的手册,以便在'WHERE附近使用正确的语法 bio_community_events.group_id='1'

我找不到语法错误!

编辑:

我把所有包装成括号并添加"AND WHERE".不工作......仍然是同样的错误.

新查询:

SELECT `bio_community_events`.`id`,
`bio_community_events`.`begin_on`,
`bio_community_events`.`name`
FROM `bio_community_events`
JOIN `bio_contacts`
ON (`bio_contacts`.`contact_id` = `bio_community_events`.`user_id`)
JOIN `bio_community_groups`
ON (`bio_community_groups`.`id` = `bio_community_events`.`group_id`)
WHERE (`bio_contacts`.`user_id` = '33')
AND WHERE (`bio_community_events`.`group_id` = '1')
LIMIT 10

UNION ALL

SELECT `bio_community_events`.`id`,
`bio_community_events`.`begin_on`,
`bio_community_events`.`name`
FROM `bio_community_events`
JOIN `bio_contacts`
ON (`bio_contacts`.`user_id` = `bio_community_events`.`user_id`)
JOIN `bio_community_groups`
ON (`bio_community_groups`.`id` = `bio_community_events`.`group_id`)
WHERE (`bio_contacts`.`contact_id` = '33')
AND WHERE (`bio_community_events`.`group_id` = '1')
LIMIT 10

编辑#2:

我看了你的例子.愚蠢的我!谢谢.

Answer 1

你有2个WHERE条款,你需要WHERE用AND或替换你的第二个OR.

编辑:像ypercube指出的那样,你在-clause的两个子查询中都有错误UNION.

例如:

SELECT `bio_community_events`.`id`,
   `bio_community_events`.`begin_on`,
   `bio_community_events`.`name`
FROM `bio_community_events`
JOIN `bio_contacts`
    ON (`bio_contacts`.`user_id` = `bio_community_events`.`user_id`)
JOIN `bio_community_groups`
    ON (`bio_community_groups`.`id` = `bio_community_events`.`group_id`)
WHERE `bio_contacts`.`contact_id` = '33'
AND `bio_community_events`.`group_id` = '1'
LIMIT 10

编辑2:

甲WHERE子句需要一个布尔表达式.WHERE每个查询只能有一个子句.

SELECT语法

表达式语法

如果要连接2个表达式,则必须使用OR或AND等.您不需要编写另一个WHERE子句.这一切都融为一体WHERE.